Add support for TraceEvent before the native library is loaded.

base/android/base_jni_registrar.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/android/base_jni_registrar.h"
 
 #include "base/android/application_status_listener.h"
 #include "base/android/build_info.h"
 #include "base/android/command_line_android.h"
 #include "base/android/content_uri_utils.h"
 #include "base/android/cpu_features.h"
+#include "base/android/early_trace_event.h"
 #include "base/android/event_log.h"
 #include "base/android/field_trial_list.h"
 #include "base/android/important_file_writer_android.h"
 #include "base/android/java_handler_thread.h"
 #include "base/android/jni_android.h"
 #include "base/android/jni_registrar.h"
 #include "base/android/jni_utils.h"
 #include "base/android/locale_utils.h"
 #include "base/android/memory_pressure_listener_android.h"
 #include "base/android/path_service_android.h"
@@ skipping 10 matching lines @@
 namespace base {
 namespace android {
 
 static RegistrationMethod kBaseRegisteredMethods[] = {
     {"ApplicationStatusListener",
      base::android::ApplicationStatusListener::RegisterBindings},
     {"BuildInfo", base::android::BuildInfo::RegisterBindings},
     {"CommandLine", base::android::RegisterCommandLine},
     {"ContentUriUtils", base::RegisterContentUriUtils},
     {"CpuFeatures", base::android::RegisterCpuFeatures},
+    { "EarlyTraceEvent", base::android::RegisterEarlyTraceEvent },

[dsinclair, 2015/02/09 21:11:20]

nit: looks like the spacing is off here relative to the other lines.

[Benoit L, 2015/02/10 15:31:35]

Done.

     {"EventLog", base::android::RegisterEventLog},
     {"FieldTrialList", base::android::RegisterFieldTrialList},
     {"ImportantFileWriterAndroid",
      base::android::RegisterImportantFileWriterAndroid},
     {"JNIUtils", base::android::RegisterJNIUtils},
     {"LocaleUtils", base::android::RegisterLocaleUtils},
     {"MemoryPressureListenerAndroid",
      base::android::MemoryPressureListenerAndroid::Register},
     {"JavaHandlerThread", base::android::JavaHandlerThread::RegisterBindings},
     {"PathService", base::android::RegisterPathService},
     {"PathUtils", base::android::RegisterPathUtils},
     {"PowerMonitor", base::RegisterPowerMonitor},
     {"RecordHistogram", base::android::RegisterRecordHistogram},
     {"SystemMessageHandler", base::MessagePumpForUI::RegisterBindings},
     {"SysUtils", base::android::SysUtils::Register},
     {"ThreadUtils", base::RegisterThreadUtils},
     {"TraceEvent", base::android::RegisterTraceEvent},
 };
 
 bool RegisterJni(JNIEnv* env) {
   TRACE_EVENT0("startup", "base_android::RegisterJni");
   return RegisterNativeMethods(env, kBaseRegisteredMethods,
                                arraysize(kBaseRegisteredMethods));
 }
 
 }  // namespace android
 }  // namespace base